A：液面在 “ 0 ” 刻度时，25mL碱式滴定管和50mL碱式滴定管所盛液体的体积
B：相同温度下，0.1mol /L乙酸溶液与0.2mol /L乙酸溶液中，c（H+）之比
C：氨水与(NH4)2SO4溶液混合后pH=7的溶液中，c（NH）： c（SO）
D：相同温度下，pH=12的Ba(OH)2与pH=12的KOH溶液中，c〔（Ba(OH)2〕： c（KOH）
根据短文内容完成下列各题
Today l would like to tell you about my dream．
My dream is a simple but great one．It is to be a teacher．①我从小就梦想做一名老师!②First of all，it is a pleasure for me to be with children．They make me feel ③ happy and young．Furthermore，teachers play an important part in the development of children．They teach children and show them how to be good．When children grow up，they use the knowledge that they have learned to develop their motherland and make it beautiful. I think teaching is one of the ④ (value) things in the world．
That’s all．Thank you !
